Schematic Diagram - Marantz SR7300 Service Manual

5. SCHEMATIC DIAGRAM

C302
10/50V
R350
15
R352
R302
10
33k R304
1k
C304
330p
0 0
2 3
4
Q301
2068
OP-AMP1/2
C322
100/16V
1
0
R306
100
C306
10p
0
Q304
2 2
2SA1048
R310 2SC2458
10k 3 1 Q306 1 3 +0.6 R308 10k
-0.6
2 2
Q312 Q308
2SC2240 2SA970
1 R318 R316
3 1 3 3 1
1
R314 68 68
2SA970 Q314
470
Q310 2SC2240
2 2
C308
-53.1 +53.1
2 2200p 2
R324
330k 330k
3 1 1 3
R326
R322 D304
Q318 Q316
150 2SC2705 2SA1145
C310 22/50V
C314 C312
100/63V 100/63V 100/63V
220/63V(OSE, PS) 220/63V(OSE, PS) 220/63V(OSE, PS)
-1.3 R366 +1.3
680
R328
R330
100
100
D308 D306
C318 C316
D312
D310
Dummy Dummy
3.9V 2 3.9V
R336
5 1
1 3 10
4 Q320
Q322 R338 2
SAP17N
SAP17P 220
-55.0 3 1 0 5 3
2 4
R356 R354
1k R358 680 1k
R360 22k
D314 HSS81 2
R364
R362 22k 22k
3 1
D316 HSS81
Q324
2SC2240
P104
RMA (@1@@-@3@@) POWER AMPS
RMC (@N@@) PROTECTIONS
LN99 LY2-0
1 3 5 RN68
150 1/4W
7
From Main Transfomer
8
AC41.0
1 1
RN69
2 4 6 150 1/4W
2 2 AC14.9
3 3 0
4 4 AC14.9
5 5 AC41.0
J801
VH
D802 1A D803 1A
D804 1A D805 1A
D806 1A D807 1A
D808 1A D809 1A
C820
+17.6
100/63V
R811
1 1/2W
R812
1 1/2W
-17.6
+8.4
EH 1
J802
1 1
3 2
2 2 AC7.9
3 3
D801
4 4 6GBU02
4
C819
R803
TO JC02(PC04: Dummy
-21.3 100 1/4W +5VL
Display PCB)
-21.3
R804
FL2 1 1
100 1/4W
FL1 2 2
VKK 3 3 -28.8
GND
4 4
GND
5 5
+5VD
6 6
+5VL
7 7
W803 J803
PH
TO J980(PD04:Digital I/O PCB)
All manuals and user guides at all-guides.com
10/50V
C301
R349 33k R250
15 15
R351 10
R301
10 R252
1k
R303
C303
330p
0 0
100/16V
C321
2068
Q301
OP-AMP2/2
+12V
0
100
R305
C305
-12V -12V
10p
0
2SA1048
Q303
10k 2SC2458
R309
-0.6 Q305 +0.6 R307
10k
+12V 2SC2240
Q311 R311
R312 R313 R317 R315 470 R214
3
470 470 68 68
2SA970 Q313
Q309 2SC2240
Q307
2SA970
C307
-53.1 +53.1
2200p
D301
D302 D303
R320 R321 R325 R323
R319
2SC2705 2SA1145
150 150 330k 330k
Q317 Q315 150
C309 22/50V
C313 C311
100/63V
100/63V
220/63V(OSE, PS)
220/63V(OSE, PS)
-1.3 R365 680 +1.3
R329 R327
100 100
D307 D305
Dummy
C317 C315
D311
D309
R337 Dummy
3.9V 3.9V
5 R335 1
2 10
Q321 4 220 Q319
2
SAP17P 1 3 SAP17N
+55.0 -55.0 3 1 0 5 3 +55.0
2 4
R353
R355
1k
1k R357 680
R359
22k
D313 HSS81
R361 R363
22k 22k
D315 HSS81
2SC2240
Q323
D10XB40 D821
4 3 2 1
4 3 2 1
C822 C821
0.1 0.1
VH
1 2 3 4 5 6 SCN 1 2 3 4 5
J805 W806
1 2 3 4 5 6
Idring Adjust Test Points
1 2 3 4 5
EARTH
W805 J806
J804
SDN 1 2 3 4 5 6 EH 1 2 3 4 5
GND
_HEAT_DET
+5.0
_PA_FAIL +5.0
C801
15000/63V
27000/65V(OSE) RN76 15k
+55.0 RN74 QN60
2SC2458 1
15k
RN72 10k
0 2
+5.0
RN75
3 2SC2458
15k 3
-55.0 QN61
2
C802
RN77 15k
15000/63V
1
QN55 QN62
27000/65V(OSE)
2SA1048 2SA1048
1 CN55
RN80 10k
1000p
2
RN55
3 10k
Q801
+17.3 3 1
7812
2
RN73
10k
3
7912
-17.3 2 1
Q802
3
3 1 2
7805
QN54
2 1
2SA1048
Q803
Q804
DN54
3 1
1A
7805
2
LN54
0 0 0
W808
8 7 6 5 4 3 2 1 8 7 6 5 4 3 2 1
SAN
J809 PH
W809
J174
8 7 6 5 4 3 2 1
SB SL
SPEAKER OUTPUTS
TO JS05(PS04:Audio PCB)
9
FROM JE09(PS04:Audio PCB)
FROM JE08(PS04:Audio PCB)
J102
J101
EH
PH
10/50V
C202
33k R249 10 33k
R251
15
R202 R201
1k
R204
C204 C203
330p 330p
0 0
2068
-12V 2068 Q201
Q201 OP-AMP2/2
OP-AMP1/2
C222
100/16V
0
100
R206
C206 C205
-12V
10p 10p
0
2SA1048
Q204
10k 2SC2458 10k 2SC2458
R210 R209
-0.6 Q206 +0.6 R208 -0.6 Q205
10k
2SC2240 +12V 2SC2240
2SA970
Q212 Q211
Q208
R218 R216 R212 R213 R217 R215
470 68 68 470 470 68 68
2SA970 2SC2240 2SA970
Q210 Q214 Q209
2200p 2200p
C208 C207
-53.1 +53.1 -53.1
D202
150 330k 330k 150 150 330k 330k
R222 R226 R224 R221 R225 R223
D204 R220 D203
2SC2705 2SA1145 2SC2705
Q218 Q216 Q217
C210 22/50V C209 22/50V
C212
C214 C213
680 100/63V 100/63V 680
100/63V
220/63V(OSE, PS)
220/63V(OSE, PS) 220/63V(OSE, PS)
-1.3 R266 +1.3 -1.3 R265
100 100 100
R230 R228 R229
D208 D206 D207 D205
Dummy 3.9V 3.9V Dummy 3.9V
C218 Dummy C217
D212 D211
D210
R238 C216 R237
R236 5 R235
5 1
2 10 2 10
SAP17P SAP17N SAP17P
4 220 4 220
Q222 2 Q220 Q221
1 3 1 3
-55.0 3 1 0 5 3 +55.0 -55.0 3 1 0
2 4 2
1k 1k
1k
R256
R255
680 680
R254
R260 R259
HSS81 HSS81
22k R258 22k R257
D214 D213
22k
R262 R261
22k HSS81 R264 22k HSS81
D216 D215
2SC2240
Q224
W179
J179
VH
R171 10 1w
C173 0.022 C171 R172 10 1w
P804
C174 0.022 C172 R271 10 1w
C273 0.022 C271 R272 10 1w
RMB (@1@@-@3@@) POWER AMPS
C274 0.022 C272 R371 10 1w
RPS (@8@@) POWER SUPPLY
C373 0.022 C371 R372 10 1w
C374 0.022 C372
0 0 0 0 0 0
QN59
1 DTC114
2
3
QN58
1 DTC114
2
3
3 3 3 3 QN57
1 DTC114
2 2 2 2
2
QN53 QN52 QN51 QP92
1 1 1 1
2SA1048 2SA1048 2SA1048 2SA1048
3
1A 1A 1A QN56
1A
DN53 DN52 DN51 DP91 1 DTC114
2
3
QP91
1 DTC114
2
LN53 LN52 LN51 LP91
0 0 0 0 0 0 0
3
+5.0
JP91 J810
EH FFC
J173 J172 J171
WP91
WC02
SR CENTER
FL(B) FR(B) FL(A) FR(A)
TO JP92(PP94:Head Phones PCB)
TO JU04(P604:u-Com DSP PCB)
10/50V
10/50V C102
C201
R150 10 33k R149
R152
15 15
R102
1k 1k
R203 R104
C104
330p
0 0 0 0
100/16V
C221
-12V 2068
Q101
OP-AMP1/2
+12V
C122
100/16V
0 0
100 100
R205 R106
C106
-12V
10p
0 0
2SA1048 2SA1048
Q203 Q104
10k 2SC2458
+12V
R110
+0.6 R207 -0.6 Q106 +0.6 R108
10k 10k
2SC2240
2SA970 2SA970
Q112
Q207 Q108
R211 R114 R118 R116 R112
470 470 68 68 470
2SC2240 2SA970 2SC2240
Q213 Q110 Q114
2200p
C108
+53.1 -53.1 +53.1
D201 D102
150 150 330k 330k 150
R122 R126 R124
R219 D104 R120
2SA1145 2SC2705 2SA1145
Q215 Q118 Q116
C110 22/50V
C114 C112
C211
100/63V 100/63V 680 100/63V
220/63V(OSE, PS)
220/63V(OSE, PS) 220/63V(OSE, PS)
+1.3 -1.3 R166 +1.3
100 100 100
R227 R130 R128
D108 D106
3.9V Dummy 3.9V 3.9V
Dummy C118 Dummy
D112
D209 D110
C215 R138 C116
1 5 R136 1
2 10
SAP17N SAP17P SAP17N
4 220
2 Q219 Q122 2 Q120
1 3
5 3 +55.0 -55.0 3 1 0 5 3 +55.0
4 2 4
1k
1k 1k
R156
680
R253 R154
R160
HSS81
22k R158
D114
22k 22k
R162
R263 22k HSS81 R164
D116
2SC2240 2SC2240
Q223 Q124
JP99
Idring Adjust Test Points PP94
9
(RHP)
JP92 8
EH
WP91 XP91
HP DET
1 1
7
HP-R
2 2
3 3 GND
3
4 4 HP-L
CP92
2
0.1
WP93
1
EARTH HEAD PHONES OUT
D862 0.1A
Q852
S-80842CNY
GND 5 5
RESET IC (4.2V)
2.2k 1/6w
R851
+5VL 4 4 +5.0 OUT 1 VDD
3
+5VL
PR_POWER 3 3 +12.0
2 VSS
_STANDBY 2 2 +5.0
_P_DOWN
1 1 +5.0
J807 J853
0
JQ XH-S
78M05 Q851
1A
3 1 +10.4
OUT IN
2
D858 2
GND
Jumper
2
1
1
3
E
B E 3
2 R854
2
1 L851
DTC114 C B
10k
Q853 Q854
1
2SA1048 C
TV-8
F851
J856 J857
AC250V 10A (U,F)
AC250V T5AL (N,K)
VA
P894 J854
SDN
T001
W891
9
1
2
P864
8
3
1
4
7
5
1 1 1 1
6
2 2 2 2
1 5 2
2
4
3
4
3
SCN
W892
MAIN TRANSF.
10
10/50V
C101
10 33k
R151
R101
1k
R103
C103
330p
0 0
6 5
C121
2068
100/16V
Q101
OP-AMP2/2
8
7
0
100
R105
C105
-12V
10p
0
Q103
2
2SA1048
10k 2SC2458
R109
-0.6 Q105 +0.6
1 3
R107 10k
2SC2240
2
Q107
Q111
2SA970
R113 R117 R115
3 1
3
470 68 68 R111
2SA970 1
Q113 470
Q109
2SC2240 2
2200p
C107
-53.1 +53.1
2
150 330k 330k D101
1 3
R121 R125 R123
D103 R119
2SC2705
Q115
Q117 150
2SA1145
C109 22/50V
C111
C113
100/63V 680 100/63V
220/63V(OSE, PS) 220/63V(OSE, PS)
-1.3 R165 +1.3
100
R127
R129
100
D107 D105
Dummy 3.9V
C117 Dummy
D111
D109
R137 C115
3.9V
R135
5 1
2 10
SAP17P Q119
4 220
Q121 2 SAP17N
1 3
-55.0 3 1 0 5 3 +55.0
2 4
1k
R153
R155
680 1k
R159
HSS81
22k R157 CN01
4.7/50V
D113
R161 R163
22k HSS81 22k
RN16
6.8k
D115
Q123
2SC2240
2
QN02
2SA970
3 1
RN09
RN01 68k 22k
0
CN03
RN02 68k
0.01
RN08 100k
RN07 0
RN03 68k
33k
RN10
CN04 1
RN04 68k
47/50V
+5.0 100k
CN02 2
RN05 68k
0.01
CN08
3
RN06 68k
0.01
4
QN04
RN11
1 DTC114 22k
+12V 5
RN17
-12V 3.3k
2
6
0.47/50V CN05
RN12
7
4700p
1k
CN09 RN13
3 8
33k
9 QN01
RN14
CN06 TA7317P
Dummy
1k RN15
+12V
3.3k
+5.0
1 C
RN22
2 10k
Heat Sens Temp.
B
100C'
QN03
3 E RN20
2SC2458
10k
RN99
For HEAT Sens.
P854
1A D851
RPS (@8@@) POWER SUPPLY
1A D852
RBU (@8@@) BUCK UP POWER SUPPLY
1A D853
Backup Trans. T851
1A D854 R857
9 4
100V,120V,230V
B856 (F) (U) (N)
Jumper
13 3
P884
220V
B857 (K)
(N,K,F)
1A D855
5 1 VA
J881
1 1 1 1
2
1A D856 (N,K,F)
2 2 2 2
1
W852
VA
J852
(RSW)
AC OUTLETS
AC OUTLET R860 (U)
J861
J860 (U,F) 2.2M
J806(N)
GND
EARTH
2
AC CORD(U)
W001
1
1
2
J859 (N) J858 (N)
F852 (N)
AC250V T2.5AL
B854 (U,F)
VA
J851 1
B853 (U,F) 1 1
2
2 2
AC CORD(N,K,F)
J871
W871
AC INLET(N,K,F) Z011
VA